BirdAnalyst
Species · BCR 10 · BBS 2025 Release · 1966–2024

American Robin In Northern Rockies

All regionsNorthern RockiesForest birds

American Robin in Northern Rockies has declined: down 50% on the route-weighted index since 1970.

-50%Since 1970TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
222Routes In RegionSurvey routesHow many standard-protocol BBS routes contributed counts. More routes means a steadier, better-sampled index; very thin coverage is suppressed.Full methodology →
56YearsYears surveyedNumber of years with at least one standard-protocol run in this geography. A longer record makes the trend more reliable.Full methodology →

Notable SignalsNotable signalsLong-arc shifts the engine flags automatically — sustained declines or increases large enough to stand out from year-to-year noise.Full methodology →

No notable trend signals for American Robin in Northern Rockies. See the full index history below.

Forecast

If the recent trend holds, American Robin in Northern Rockies is projected to stay roughly flat through 2029, near 26 (95% range 15–37). A 5-year backtest shows a typical error of ±6.6%, with 100% of held-out values landing inside the 95% band.

+4%Change by 2029TrendPercent change in the route-weighted abundance index between a smoothed baseline window and the most recent one. It tracks direction, not absolute population.Full methodology →
26Projected 2029 indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →
15–3795% range95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
±6.6%Backtest errorBacktest errorTypical error when we hold out the most recent years, forecast them, and compare to what actually happened. Lower means a more trustworthy projection.Full methodology →
If the recent trend holds, American Robin in Northern Rockies is projected to stay roughly flat through 2029, near 26 (95% range 15–37). A 5-year backtest shows a typical error of ±6.6%, with 100% of held-out values landing inside the 95% band.19682029
Projection of the recent trend (dashed) with 80/95% bands — a projection, not a prediction. Habitat, climate, and land use are not modeled.
YearProjected indexProjected indexThe central forecast of the abundance index if the recent trend continues. A projection of the current trajectory, not a prediction.Full methodology →95% low95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →95% high95% rangeThe 95% uncertainty band around the projection at the forecast horizon. The true value should land inside it most of the time.Full methodology →
2025271638
2026271638
2027271538
2028261537
2029261537

Routes In Northern Rockies

Routes recording American Robin in Northern Rockies.
Recent countThe raw number of individuals recorded on this route in its most recent survey year. A single-route tally, not a trend.Full methodology →
AlpineWYOMING1122024
CascadeIDAHO801984
Deer ParkWASHINGTON772015
WoodruffUTAH752024
Libby DamMONTANA742024
CoolinIDAHO732024
Buckskin MtnWYOMING732021
NezperceIDAHO712012
Hells CanyonOREGON712022
KellerWASHINGTON702007
ChestnutMONTANA692024
LaurierWASHINGTON692022
DonnellyOREGON682006
Red RockMONTANA672024
OchocoOREGON651982
Clyde ParkMONTANA582024
NewbridgeOREGON582024
ChewelahWASHINGTON572021
CusickWASHINGTON572024
WoodmanMONTANA562024
Freeman CreekMONTANA552016
Pagil GulchMONTANA552024
MonumentOREGON552024
NaplesIDAHO542024
Crazy WomanWYOMING542024

Source: USGS North American Breeding Bird Survey, retrieved 2026-05-22.